Active solid-state devices (e.g. – transistors – solid-state diode – Alignment marks
Reexamination Certificate
2011-08-30
2011-08-30
Wagner, Jenny L. (Department: 2891)
Active solid-state devices (e.g., transistors, solid-state diode
Alignment marks
C257SE21237
Reexamination Certificate
active
08008788
ABSTRACT:
A technique for positioning a semiconductor chip and a mounting substrate with high precision using an alignment mark. In a semiconductor chip, a mark is formed in an alignment mark formation region over a semiconductor substrate in the same layer as an uppermost layer wiring (third layer wiring) in an integrated circuit formation region. Then, in the lower layer of the mark and a background region surrounding the mark, patterns are formed. Pattern P1ais formed in the same layer as a second layer wiring, pattern P1bis formed in the same layer as a first layer wiring, pattern P2is formed in the same layer as a gate electrode, and pattern P3is formed in the same layer as an element isolation region.
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Koketsu Masami
Sawada Toshiaki
Miles & Stockbridge P.C.
Renesas Electronics Corporation
Wagner Jenny L.
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